Hydraulic connector for a windshield wiper blade having guidance by a longitudinal arm

Abstract

The invention relates to a hydraulic connector for a wiper system, said wiper system also comprising a blade holder intended to move a blade over the surface to be wiped, a blade ( 3 ) and a mechanical connector ( 10 ) fixed to said blade in order to attach it to the blade holder, said hydraulic connector ( 30 ) having at least one line ( 31, 32 ) for supplying a liquid to the blade ( 3 ) via the mechanical connector ( 10 ). Said hydraulic connector is characterized in that it comprises at least one guide means ( 34 ) able to engage with a corresponding element ( 14 ) of the mechanical connector ( 10 ) in order to be aligned thereon while the blade ( 3 ) is being fitted on the blade holder.

The invention claimed is: 
     
       1. A connection device of a wiper system, comprising:
 a terminal piece positioned at an end of a blade holder that extends in a longitudinal direction; 
 a blade connected to the blade holder; 
 a mechanical connector attached to the blade, 
 an adaptor configured to be disposed in between and in contact with the terminal piece and the mechanical connector; and 
 a hydraulic connector of the wiper system, 
 wherein the hydraulic connector comprises a pipe for carrying a liquid to the blade by the mechanical connector, and 
 wherein the hydraulic connector comprises a guidance member, distinct from the pipe, that is configured to align with and contact the mechanical connector, and wherein the guidance member is inserted into a guidance ramp of the mechanical connector. 
 
     
     
       2. The connection device as claimed in  claim 1 , wherein the guidance member is positioned laterally relative to the hydraulic connector. 
     
     
       3. The connection device as claimed in  claim 1 , wherein the guidance member is an arm extending in a direction corresponding to a direction of extension of the the pipe. 
     
     
       4. The connection device as claimed in  claim 3 , wherein the guidance member is configured to align with and contact a guidance ramp of the mechanical connector, the guidance ramp protruding from a lateral face of the mechanical connector. 
     
     
       5. The connection device as claimed in  claim 1 , wherein the guidance member is a guidance ramp extending in a direction corresponding to a direction of extension of the pipe. 
     
     
       6. The connection device as claimed in  claim 5 , wherein the guidance ramp protrudes from a lateral face of the mechanical connector. 
     
     
       7. The connection device as claimed in  claim 1 , further comprising a supporting element that is configured to contact a supporting member attached to the blade holder while retaining at least one degree of freedom, the guidance means being arranged so as to allow the hydraulic connector to move according to the at least one degree of freedom. 
     
     
       8. The connection device as claimed in  claim 7 , wherein the at least one degree of freedom is a rotation, wherein the supporting element comprises a trunnion positioned laterally relative to the hydraulic connector and extending in a direction corresponding to a lateral direction relative to a direction of extension of said pipe. 
     
     
       9. The connection device as claimed in  claim 1 , wherein the connection device has a position of use and a position of service, the adapter comprising a means for immobilizing the hydraulic connector, in translation in the longitudinal direction, effective in the position of use. 
     
     
       10. The connection device as claimed in  claim 9 , wherein said immobilization means is a finger formed on a lateral wall of the adapter, said finger configured to contact a protuberance extending laterally from the hydraulic connector. 
     
     
       11. The connection device as claimed in  claim 10 , wherein the protuberance comprises a trunnion. 
     
     
       12. The connection device as claimed  claim 1 , wherein the connection device has a position of use and a position of service, the terminal piece comprising a supporting means, for supporting the hydraulic connector, effective in the position of service. 
     
     
       13. The connection device as claimed in  claim 12 , wherein the hydraulic connector comprises a supporting element that is configured to contact the supporting means attached to the blade holder while retaining at least one degree of freedom, wherein the supporting means comprises two pieces attached to lateral faces of the terminal piece and each comprising, on their side internal to the terminal piece, a cavity that is configured to receive a trunnion.